Adsorption-desorption of CO2 on zeolite-Y-templated carbon at various temperatures

Triyanda Gunawan; Rika Wijiyanti; Nurul Widiastuti

doi:10.1039/c8ra09200a

Adsorption-desorption of CO₂ on zeolite-Y-templated carbon at various temperatures

RSC Adv. 2018 Dec 12;8(72):41594-41602. doi: 10.1039/c8ra09200a. eCollection 2018 Dec 7.

Authors

Triyanda Gunawan¹, Rika Wijiyanti¹, Nurul Widiastuti¹

Affiliation

¹ Department of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember 60111 Surabaya Indonesia nurul_widiastuti@chem.its.ac.id.

Abstract

This study aims to investigate the adsorption-desorption of CO₂ on a micro-mesoporous zeolite-Y-templated carbon (ZTC) at various temperatures. ZTC was synthesized via sucrose impregnation, carbonization, and template removal. The adsorption-desorption of CO₂ on ZTC was performed using the gravimetric method. Results showed that the CO₂ adsorption capacity was 9.51 wt%, 5.60 wt%, and 3.47 wt%, and desorbed up to 59.83%, 69.70%, 77.5% for temperatures of 30 °C, 40 °C, and 50 °C, respectively. The adsorption process of CO₂ at temperatures of 30 °C and 40 °C follow the pseudo-second order, while at 50 °C follows intra-particle diffusion. The thermodynamic analyses indicate that the adsorption was due to physisorption.